Receptacle-closure.



B. T. WILLISTON.

REGEPTAOLE GLOSURE.

APPLICATION FILED 001. 14. 1911.

1,087,520. Patented Feb. 17, 1914.

2 SHEETS-SHEET 1.

B. T. WILLISTON.

REGBPTACLE CLOSURE.

APPLICATION FILED OCT. 14, 1911.

Patented Feb. 17, 1914.

2 SHEETS-SHEET 2.

wiiitese s 64 4/4 UZ J BELVIN T. WILLISTON, OF SOIVIERVILLE,MASSACHUSETTS, ASSIGNOR TO THE UNITED INJECTOR COMPANY, OF NEW YORK, N.Y., A CORPORATION OF NEW YORK.

RECEPTACLE-CLOSURE.

To all whom it may concern Be it known that I, BELVIN T. VVILLISTON, acitizen of the United States, and resident of Somerville, in the countyof Middlesex and State of Massachusetts, have invented new and usefulImprovements in Receptacle-Closures, of which the following is aspecification.

My invention relates to receptacle closures, and consists inimprovements in the construction thereof by means of which a casing,such as a strainer casing, can be opened and closed for inspection orrepair with ease and certainty and with a mini-' mum of liabiliay toerror or damage.

In the drawings hereto annexed which illustrate an example of myimprovements as applied to a strainer-casing, Figure 1 shows a strainerin end elevation; Fig. 2 is a sect-ion of Fig. 1, along the line 2-2viewed from above; Fig. 3 is a top plan View; and Fig. i is a sideelevation partly broken away to disclose a portion of the interior.

The strainer casing marked C is provided with two sets of internal ribsG, C, which form grooves at opposite sides of the casing, between whichthe strainer plate S is inserted and held. The strainer plate S isrectangular in shape.

The lid or cover L ofthe casing C is a casting provided with a shallowcylindrical projection or boss L on its inner side which fits, thoughnot snugly, in the circular aperture in the casing O, through which thestrainer plate S is inserted. This projection or boss L is diametricallydivided by a groove, the depth of which is slightly increased by theformation of the ridges L, L, on the inside of the lid or cover L (seeFig. 4c). The longer dimension of the strainer plate is such that itsouter edge is confined in the groove between the ridges L, L, so thatwhen in position the strainer plate S is securely inclosed and held onall sides. The cover L is provided with ears E, which engagerespectively with the holding studs B, B, which are threaded and carrythe nuts N, N. These nuts are provided respectively with conical seatingends at n which fit into conical seats 6 6 upon the ears E, E, so thatindependently of the functioning of the studs B, B the nuts N, N areself centering and serve to guide the cover L with automatic accuracyinto Specification of Letters Patent.

Application filed October 14, 1911.

Patented Feb. 1 '2, 1914.

Serial No. 654,640.

its position on the casing. In order to guard against accidental removaland loss of the nuts N, N, retaining collars b, b are pinned at the endsof the studs B, B.

The ear E so engages the stud B that within a limited range a tippingmovement is allowed. To this end the hole for the stud is slightlytapered as at 6 if the nut N be turned down in advance of the nut N thecover L will not bind upon the stud B but will tip and accommodateitself to the situation.

The ear E is notched at 6 so that when both nuts N, N are loosened thecover L may be swung to one side on the stud B which acts as a pivot,thus disclosing the interior of the casing. While the stud B in itselfaffords no restraint laterally in one direction by reason of the notch 6the conical seat 6 which is engaged by the conical end a of the nut Ninsures the proper confinement and centering of the ear E when the nut Nis turned downward and therefore insures the proper entry of thecylindrical projection L into the aperture in the casing and the properengagement of the outer edge of the strainer plate S by the groovebetween the projections L, L. In order further to facilitate the openingof the strainer casing a lifting spring D is provided which is normallyheld under compression between the ear E and the lug F. As soon as thenuts N, N are both slackened the spring D moves the cover L keeping theconical engaging portions n, e in contact with each other so that theeffect of the spring is to maintain the cover L in substantialparallelism with the face of the casing with which it is engaged. WVhenthe projections on the inside of the cover L are moved far enough toclear the face of the casing the clearance is uniform at all points andthe cover may be swung to disclose the interior of the casing. Inpractice a strainer of this character will be fixed in such positionthat the cover L will swing in a vertical or nearly vertical plane, thestud B being at the upper part of the casing.

The holding studs B, B, are not only threaded into the lugs F, F, butare preferably also pinned therein so as to be perfectly secure. Ifdesired a packing ring P may be inserted in the inner face of the coverL to engage with the outer face of the casing C.

The construction above described inakes opening and closing of thestrainer casing easy, and yet no matter how rapidly the opening andclosing is accomplished the fastening means above described insure theproper positioning and centering of the cover so as to avoid injury toit or to the casing or strainer plate.

lVhat I claim and desire to secure by Letters Patent is:

1. In a receptacle, the combination with a strainer casing having aninlet, an outlet, an opening in one side between the inlet and theoutlet, diametrically disposed lugs on the outside of said casing, arigid stud projecting upwardly from each lug above said opening, and aclosure for the casing co1nprising a plate provided with ears extendingfrom the edge of the closure on diametrically opposite sides thereof inone of which ears is a perforation fitting freely one of said studs topermit rotation of the closure about the same and also to movelongitudinally thereof, a notch in the other ear to engage the otherstud and arrest the closure above the opening in the casing, a springsurrounding the hinged stud between the lug and the ear tending to forcethe closure in a straight line from the casing, and nuts threaded on theother end of said stud to depress the closure and secure it in positionover the open ing in the casing.

2. In a receptacle, the combination With a strainer casing having aninlet, an outlet, an

gage the upper end of the strainer plate,

ears projecting from the edge of the closure on opposite sides in one ofWhich is a perfo 'ation through which passes freely one of said rigidstuds to form a hinge pin therefor around which said closure may beswung and be moved in a straight line axially thereof, a notch beingformed. in the other ear to engage the second stud when the closure isswung above the casing and arrest the said closure in position over theopening in the casing, a spring surrounding the hinge stud between thelug and the ear tending at all times to force the closure in a straightline away from the opening in the casing, and nuts threaded on the outerends of said studs by means of which said closure is depressed intocontact with the casing and secured in position over the openingtherein.

Signed by me at Boston, Massachusetts, this eleventh day of October,1911.

BELVIN T. VVILLISION.

lVitnesses ODIN Ronnn'rs, CHARLES D. W'oonnnnnr.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

